MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f2b3ed9a4ffbcc74561b70c897bee3942d65ef624bedb54d8448b89fde9805d8. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 17


Intelligence 17 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f2b3ed9a4ffbcc74561b70c897bee3942d65ef624bedb54d8448b89fde9805d8
SHA3-384 hash: 807bf070bcdc762819d5f1eb0de65949382ce19a92ce459937fca23b2743b7e181f30df32b18d7b22ed339e0592fbc87
SHA1 hash: 726db0e3c99b846488c27704c77be537b98d848d
MD5 hash: 49810088b5712bfdd20fc62199b7771b
humanhash: edward-papa-nine-kentucky
File name:Payment slip_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'177'088 bytes
First seen:2025-07-31 06:49:20 UTC
Last seen:2025-08-12 15:05:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep 24576:htb20pkaCqT5TBWgNQ7aug560rYURPQWjmO36A:yVg5tQ7auMrYUe45
TLSH T1A545CF1363DEC361C3B25273BA257741AEBF782506B5F96B2FD4093DE820122525EA73
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
66
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment slip_pdf.exe
Verdict:
No threats detected
Analysis date:
2025-07-31 06:56:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3e7871b2-d0bf-4a7c-8d38-377bb50234b6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/17924/
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=688b11f8af3050dc8d32a02f
Tags:
underscore autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Sending a custom TCP request
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit compiled-script fingerprint keylogger masquerade microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/688b11f4a16348d835f55dc8/reports/1ac3d285-647c-48db-84f9-517c132cfb98/overview
Verdict:
Malicious
Labled as:
AIT:Trojan.Nymeria
Link:
https://www.hybrid-analysis.com/sample/f2b3ed9a4ffbcc74561b70c897bee3942d65ef624bedb54d8448b89fde9805d8
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8147e57f-5dfd-4f08-8cdc-ea4899dac5cb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1747600
Signature
Binary is likely a compiled AutoIt script file
Initial sample is a PE file and has a suspicious name
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1747600 Sample: Payment slip_pdf.exe Startdate: 31/07/2025 Architecture: WINDOWS Score: 100 26 www.rocketxr.xyz 2->26 28 www.magicsagents.xyz 2->28 30 12 other IPs or domains 2->30 46 Suricata IDS alerts for network traffic 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 Yara detected FormBook 2->50 54 3 other signatures 2->54 10 Payment slip_pdf.exe 4 2->10         started        signatures3 52 Performs DNS queries to domains with low reputation 28->52 process4 signatures5 56 Binary is likely a compiled AutoIt script file 10->56 58 Writes to foreign memory regions 10->58 60 Maps a DLL or memory area into another process 10->60 13 svchost.exe 10->13         started        process6 signatures7 62 Maps a DLL or memory area into another process 13->62 16 vZjpNv1Pv.exe 13->16 injected process8 process9 18 raserver.exe 13 16->18         started        signatures10 38 Tries to steal Mail credentials (via file / registry access) 18->38 40 Tries to harvest and steal browser information (history, passwords, etc) 18->40 42 Modifies the context of a thread in another process (thread injection) 18->42 44 3 other signatures 18->44 21 3NKJw6GP7oSh.exe 18->21 injected 24 firefox.exe 18->24         started        process11 dnsIp12 32 lnqvodo.ng.impervadns.net 45.223.97.231, 49728, 49729, 49730 ROCKETNETZA United States 21->32 34 www.game-keep-secret.xyz 8.138.216.45, 49732, 49733, 49734 CNNIC-ALIBABA-CN-NET-APHangzhouAlibabaAdvertisingCoLtd Singapore 21->34 36 6 other IPs or domains 21->36
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f2b3ed9a4ffbcc74561b70c897bee3942d65ef624bedb54d8448b89fde9805d8
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PDB Path PE (Portable Executable) Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/49810088b5712bfdd20fc62199b7771b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f2b3ed9a4ffbcc74561b70c897bee3942d65ef624bedb54d8448b89fde9805d8/
Verdict:
Malicious
Threat:
VHO:Trojan.Win32.Strab
Link:
https://tip.neiki.dev/file/f2b3ed9a4ffbcc74561b70c897bee3942d65ef624bedb54d8448b89fde9805d8
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6kz63gsp7pghivq3odejppxdsqwwl33cjpw3ktmejc4j7xuyaxma._file
Verdict:
malicious
Label(s):
autoit
Create hunting rule
unc_loader_036
Create hunting rule
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250731-hljbbsslv2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7b1bc95c-6fc0-4580-8771-d6c10afb4412
Unpacked files
SH256 hash:
65df780faca2940db3f8ad7ba6bf8bd9f13e18d7a319f1c06dfcbab9ab13ea77
MD5 hash:
9194535387ce2cd90775e7e105352ea8
SHA1 hash:
d1498e0a941a0bcd9909a5124aeffe42430982b7
Link:
https://www.unpac.me/results/5756c59c-d919-400b-826c-36c253279c2c/
SH256 hash:
8d8f7bda83cbdb6bf7c789bc0b506df90f4ec602d45f39b90fbef35f939bfe63
MD5 hash:
8dc58eb10fac16dcbe407bf14b570cec
SHA1 hash:
b2cb0799179588a9c206acad3b277546b520fcba
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/5756c59c-d919-400b-826c-36c253279c2c/
Parent samples :
57c8ee35e3b1d914fb8cc8908626feaafd4856e550409bc8d5e7c152e61cfe6c
fb7eb5945f6f5848ee08c928e131175b309e2c51398f1c964fbf5fffda52e448
a2fc01d5d2ccfadf49471abdcca89edfb7f64c8a9c533db20d7dd8f731ee2000
42663033f143886f345bd3360c59c20332e0fb3c4d8377a9ef8acff74673c40e
9221af9a133e2eb4000012e9e675f80ab9546b79ab6728abf8e887725129b1d6
f2b3ed9a4ffbcc74561b70c897bee3942d65ef624bedb54d8448b89fde9805d8
SH256 hash:
8adf4275bf4bee41cb14f15ac7cdd92590718ef85def13b3ba9b33812f105353
MD5 hash:
0b9a32caf08df39ddad7130409ed57f7
SHA1 hash:
bd1bab04039a6feb254307931734715f37fa5e48
Link:
https://www.unpac.me/results/5756c59c-d919-400b-826c-36c253279c2c/
SH256 hash:
f2b3ed9a4ffbcc74561b70c897bee3942d65ef624bedb54d8448b89fde9805d8
MD5 hash:
49810088b5712bfdd20fc62199b7771b
SHA1 hash:
726db0e3c99b846488c27704c77be537b98d848d
Link:
https://www.unpac.me/results/5756c59c-d919-400b-826c-36c253279c2c/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f2b3ed9a4ffb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f2b3ed9a4ffbcc74561b70c897bee3942d65ef624bedb54d8448b89fde9805d8

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:YahLover
Create hunting rule
Author:Kevin Falcoz
Description:YahLover

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe f2b3ed9a4ffbcc74561b70c897bee3942d65ef624bedb54d8448b89fde9805d8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/17924/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

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